Joint nonlinear electrical equalization in coherent optical PDM DFT-spread-OFDM systems  

作　　者：黄志远 张帆 陈章渊 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks,Peking University

出　　处：《Chinese Optics Letters》2013年第6期6-9,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 61077053,60932004,and 61275005);the National "863" Program of China(No. 2012AA011302);National "973" Program of China (No. 2010CB328201);supported by the Program for New Century Excellent Talents in University

摘　　要：We propose a joint nonlinear electrical equalization approach in coherent optical discrete-Fourier-transform spread orthogonal-frequency-division-multiplexing （DFT-sprea^-OFDM） systems with polarization divi- sion multiplexing （PDM）. This method is based on an adaptive Volterra series expansion for nonlinear distortions of two orthogonal polarizations. The nonlinear electrical equalization is validated through numerical simulation of 100-Gb/s quadrature phase shift keying and 200-Gb/s 16 quadrature amplitude modulation PDM DFT-spread-OFDM systems.We propose a joint nonlinear electrical equalization approach in coherent optical discrete-Fourier-transform spread orthogonal-frequency-division-multiplexing （DFT-sprea^-OFDM） systems with polarization divi- sion multiplexing （PDM）. This method is based on an adaptive Volterra series expansion for nonlinear distortions of two orthogonal polarizations. The nonlinear electrical equalization is validated through numerical simulation of 100-Gb/s quadrature phase shift keying and 200-Gb/s 16 quadrature amplitude modulation PDM DFT-spread-OFDM systems.

关 键 词：MULTIPLEXING Nonlinear optics Telecommunication systems 

分 类 号：TN929.1[电子电信—通信与信息系统]